Kenmore 580.74124 Window Air Conditioner 10,000 BTU E1 Error Fix: Room Temperature Sensor Error

Room temperature thermistor reading out of range. Unit cannot measure room temperature for automatic control. Check sensor wiring. Replace thermistor if defective.

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error E1 on the Kenmore 580.74124 Window Air Conditioner 10,000 BTU means: Room Temperature Sensor Error. The top-ranked community fix is “Test and Replace Room Temperature Thermistor Sensor” (medium difficulty, ~45 min, DIY cost: $10-$20). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · air conditioner

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many air conditioner repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $120-$180.

Other Kenmore 580.74124 Window Air Conditioner 10,000 BTU Error Codes

Auto-Shutoff Activated

Capacitor Failure

Dirty Filter Restricting Airflow

2 fixes

Evaporator Coil Sensor Error

2 fixes

Condenser Coil Sensor Error

EEPROM Error

Fan Motor Failure

Evaporator Coil Freezing Up

2 fixes

People Also Ask About Kenmore 580.74124 Window Air Conditioner 10,000 BTU Error E1

What does error code E1 mean on a Kenmore 580.74124 Window Air Conditioner 10,000 BTU?

Error code E1 on the Kenmore 580.74124 Window Air Conditioner 10,000 BTU means: Room Temperature Sensor Error. Room temperature thermistor reading out of range. Unit cannot measure room temperature for automatic control. Check sensor wiring. Replace thermistor if defective.

How do I fix error code E1 on my Kenmore 580.74124 Window Air Conditioner 10,000 BTU?

The most successful fix is "Test and Replace Room Temperature Thermistor Sensor" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

Is error code E1 on a Kenmore 580.74124 Window Air Conditioner 10,000 BTU serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix Kenmore 580.74124 Window Air Conditioner 10,000 BTU error E1 myself?

Yes — the top-ranked community fix ("Test and Replace Room Temperature Thermistor Sensor") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Needle-nose pliers.

How much does it cost to repair Kenmore 580.74124 Window Air Conditioner 10,000 BTU error E1?

DIY cost: $10-$20. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Kenmore 580.74124 Window Air Conditioner 10,000 BTU have?

The Kenmore 580.74124 Window Air Conditioner 10,000 BTU has 8 other known error codes, including: AS (Auto-Shutoff Activated), CAPACITOR FAIL (Capacitor Failure), DIRTY FILTER (Dirty Filter Restricting Airflow), E2 (Evaporator Coil Sensor Error), E4 (Condenser Coil Sensor Error), and 3 more.

What other error codes does the Kenmore 580.74124 Window Air Conditioner 10,000 BTU have?

The Kenmore 580.74124 Window Air Conditioner 10,000 BTU has 8 other known error codes:

AS — Auto-Shutoff Activated (2 fixes)
CAPACITOR FAIL — Capacitor Failure (2 fixes)
DIRTY FILTER — Dirty Filter Restricting Airflow (2 fixes)
E2 — Evaporator Coil Sensor Error (2 fixes)
E4 — Condenser Coil Sensor Error (2 fixes)
E5 — EEPROM Error (2 fixes)
FAN MOTOR FAIL — Fan Motor Failure (2 fixes)
FROZEN COIL — Evaporator Coil Freezing Up (2 fixes)

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